I think the author is projecting significantly when he says the goal of AI researchers is to understand and replicate how humans think. If you start from that wrong assumption of course it looks silly for them to be doing anything other than neuroscience research, the author's field.
It's like saying the stockfish developers should stop researching mixed NN and search methods because they don't understand how humans play chess yet.
It's like saying the stockfish developers should stop researching mixed NN and search methods because they don't understand how humans play chess yet.